Image pickup device with photography positioning guidance

Abstract

An image pickup device may include a storage unit that maps photographing position information to at least two pieces of target direction information, and stores the mapped information; an acquisition unit that acquires apparatus position information and photographing direction information; a calculation unit that selects at least one from among the plurality of pieces of photographing position information stored in the storage unit based on the apparatus position information acquired by the acquisition unit, and calculates at least two direction differences that are differences between the at least two pieces of target direction information, which are mapped to the selected photographing position information and are stored in the storage unit, and the photographing direction information acquired by the acquisition unit; and a display unit that displays information corresponding to the at least two direction differences calculated by the calculation unit.

What is claimed is: 
     
       1. An image pickup device comprising:
 a storage unit that maps photographing position information indicating a photographing position of each of a plurality of photographing targets mapped to at least two pieces of target direction information indicating directions of the photographing target based on the photographing position; 
 a plurality of sensors, one of the plurality of sensors acquiring apparatus position information indicating a position of the image pickup device and another one of the plurality of sensors acquiring photographing direction information indicating a photographing direction of the image pickup device; 
 a calculation unit that selects at least one from among the plurality of pieces of photographing position information stored in the storage unit based on the apparatus position information acquired by the one of the plurality of sensors, and calculates at least two direction differences that are differences between the at least two pieces of target direction information, which are mapped to the selected photographing position information and are stored in the storage unit, and the photographing direction information acquired by the another one of the plurality of sensors; and 
 a display unit that displays information corresponding to the at least two direction differences calculated by the calculation unit. 
 
     
     
       2. The image pickup device according to  claim 1 , wherein:
 the calculation unit calculates a position difference that is a difference between the selected photographing position information and the apparatus position information; and 
 the display unit displays information corresponding to the position difference calculated by the calculation unit. 
 
     
     
       3. The image pickup device according to  claim 1 , wherein:
 the calculation unit calculates a first angle of view information indicating a photographing angle of view of the image pickup device and selects the at least one from among the plurality of pieces of photographing position information stored in the storage unit based on the angle of view information and the apparatus position information that is acquired by the the one of the plurality of sensors. 
 
     
     
       4. The image pickup device according to  claim 1 , wherein the plurality of sensors includes a geomagnetic sensor and an angular velocity sensor, measures the photographing direction of the image pickup device using the geomagnetic sensor and the angular velocity sensor, and acquires the photographing direction information. 
     
     
       5. The image pickup device according to  claim 1 , wherein:
 the storage unit stores first angle of view information for each of the photographing targets; 
 the calculation unit calculates a second angle of view information indicating a photographing angle of view of the image pickup device and an angle of view difference that is a difference between the first angle of view information and the second angle of view information; and 
 the display unit displays information corresponding to the angle of view difference calculated by the calculation unit. 
 
     
     
       6. The image pickup device according to  claim 1 , wherein:
 the storage unit stores date/time information for each of the photographing targets; 
 the calculation unit acquires date/time information indicating a current date/time from a built-in clock and selects the at least one from among the plurality of pieces of photographing position information stored in the storage unit based on the date/time information and the apparatus position information that is acquired by the one of the plurality of sensors. 
 
     
     
       7. A non-transitory storage device storing a program that causes a device, including a memory, a plurality of sensors, and a display, with the memory storing photograph position information indicating a photographing position of each of a plurality of photographing targets mapped to at least two pieces of target direction information indicating directions of the photographing target based on the photographing position, to execute:
 an acquisition step of acquiring, with the plurality of sensors, apparatus position information indicating a position of the image pickup device and photographing direction information indicating a photographing direction of the image pickup device; 
 a calculation step of selecting at least one from among the plurality of pieces of photographing position information stored in the storage unit based on the apparatus position information, and calculates at least two direction differences that are differences between the at least two pieces of target direction information, which are mapped to the selected photographing position information and are stored in the memory, and the photographing direction information; and 
 a display step of displaying, by the display, information corresponding to the at least two direction differences calculated by the calculation unit.